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    • 9. 发明申请
    • ROTOR, METHOD OF MANUFACTURING ROTOR, AND MOTOR
    • 转子,制造转子的方法和电动机
    • WO2011108733A1
    • 2011-09-09
    • PCT/JP2011/055155
    • 2011-02-28
    • NIDEC CORPORATIONNAKAMURA, MasanoriHIROKAWA, Tsuyoshi
    • NAKAMURA, MasanoriHIROKAWA, Tsuyoshi
    • H02K1/27
    • H02K1/278H02K15/03
    • The method includes the step of: a) defining a base of the rotor cover; b) defining support regions each having a cross section in a shape of a minor arc, and arranged to project radially outward to match the convex surface of a separate one of the magnets; c) arranged the magnets on the outer circumferential surface of the rotor core, and fitting the rotor core with the magnets arranged thereon to the base, and d) deforming a portion of the base which surrounds an opening of the base to define a collar portion projecting radially inward. In step b), each support region is defined such that an inner surface thereof is arranged to have a radius of curvature smaller than that of the convex surface.
    • 该方法包括以下步骤:a)限定转子盖的底座; b)限定每个具有小弧形截面的支撑区域,并且布置成径向向外突出以匹配单独一个磁体的凸表面; c)将磁体布置在转子芯的外圆周表面上,并将转子芯与其上布置的磁体配合到基座上,并且d)使围绕基座的开口的基部的一部分变形,以限定轴环部分 径向向内突出。 在步骤b)中,每个支撑区域被限定为使得其内表面布置成具有比凸面更小的曲率半径。
    • 10. 发明申请
    • ROTOR, METHOD OF MANUFACTURING ROTOR, AND MOTOR
    • 转子,制造转子的方法和电动机
    • WO2011108737A1
    • 2011-09-09
    • PCT/JP2011/055167
    • 2011-02-28
    • NIDEC CORPORATIONNAKAMURA, MasanoriHIROKAWA, Tsuyoshi
    • NAKAMURA, MasanoriHIROKAWA, Tsuyoshi
    • H02K1/27H02K15/02
    • H02K3/522H02K1/278H02K15/03H02K15/105
    • The magnet groups are arranged one above the other along a rotation axis such that the magnets in each magnet group are circumferentially displaced from the magnets in the other magnet group by a predetermined step angle. The rotor cover includes a recessed dividing portion arranged to be depressed radially inward into an interspace between the magnet groups; a plurality of support regions each arranged in contact with a separate one of the magnets; and a pair of collar portions arranged to project radially inward from both end portons of the rotor cover. The support regions are arranged to circumferentially retain the corresponding magnets, while the pair of collar portions and the recessed dividing portion are arranged to together axially retain the magnet groups.
    • 磁体组沿着旋转轴线彼此上下排列,使得每个磁体组中的磁体从另一个磁体组中的磁体周向地移位预定的步进角度。 转子盖包括凹陷的分隔部分,其布置成径向向内压入磁体组之间的间隙; 多个支撑区域,其各自布置成与单独的一个磁体接触; 以及设置成从转子盖的两个端部端部径向向内突出的一对凸缘部。 支撑区域被布置成周向地保持相应的磁体,而一对凸缘部分和凹陷分割部分被布置成一起轴向地保持磁体组。